Hello and welcome to the forums, it's always nice to see interested people. First of all I must warn you that the game and therefore the engine is in alpha state and may (and will) contain bugs, so maybe you'll want to use something like unity. If you are not gone by now, the game allows moddability, so while keeping some hardcoded stuff you might be able to make your own game. Map editor will likely break though if you have no textures.